Powell Lake Dam is an earth dam located in Gwinnett County, Georgia, built in 1968. It carries a Low hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 345 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Powell Lake Dam
The primary purpose of Powell Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Powell, R. (private). It impounds the Tr-shoal Creek near Lawrenceville.
The dam stands 23 feet tall and stretches 345 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 59 acre-feet, and collects water from a drainage area of 364 square miles. Completed in 1968, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Georgia |
| County | Gwinnett |
| Nearest City | Lawrenceville |
| River/Stream | Tr-shoal Creek |
| Coordinates | 33.96000, -83.96167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 345 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 364 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Powell, R. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA00570 |
| Federal ID | GA00570 |
| More Info | State Dam Safety Program |